modiloader | 6a1c65e57a0b014b6e353374c7a17964ce34f409c3888f894e1211712270ef06

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
08-11-2024 01:06

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General

Target

6a1c65e57a0b014b6e353374c7a17964ce34f409c3888f894e1211712270ef06N.exe
Size

326KB
MD5

8808d5120f2d920dee53f2859d05b400
SHA1

3c77559956de7d0260271364615f866450eb7968
SHA256

6a1c65e57a0b014b6e353374c7a17964ce34f409c3888f894e1211712270ef06
SHA512

11666538a0277f0e5d6048d152eec5d5c5b2b580782cd0d74e0e8c2e10bedf67bb4c7245a293409b036e30a0efbe306c268dac961afd732e7c404f4a6cb8515e
SSDEEP

3072:ce2A0wxDqUpM5scww4chO+O1BmP5DG0sg3i4XZ9WvDZHwdRX/L+gP38XV:csxD5cwohO+O1sVG0/pZ6iPC8

Score

10^/10

modiloader discovery persistence trojan upx

Malware Config

Signatures

ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
trojan modiloader
Modiloader family
modiloader

ModiLoader Second Stage 2 IoCs

resource	yara_rule
behavioral1/memory/300-250-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral1/memory/300-258-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
1996	csrsll.exe
1520	csrsll.exe
300	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2892	6a1c65e57a0b014b6e353374c7a17964ce34f409c3888f894e1211712270ef06N.exe
2892	6a1c65e57a0b014b6e353374c7a17964ce34f409c3888f894e1211712270ef06N.exe
2892	6a1c65e57a0b014b6e353374c7a17964ce34f409c3888f894e1211712270ef06N.exe
2892	6a1c65e57a0b014b6e353374c7a17964ce34f409c3888f894e1211712270ef06N.exe
2892	6a1c65e57a0b014b6e353374c7a17964ce34f409c3888f894e1211712270ef06N.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\Win Pdf = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\csrsll.exe"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2068 set thread context of 2892	2068	6a1c65e57a0b014b6e353374c7a17964ce34f409c3888f894e1211712270ef06N.exe	31
PID 1996 set thread context of 1520	1996	csrsll.exe	36
PID 1996 set thread context of 300	1996	csrsll.exe	37

UPX packed file 20 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2068-0-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral1/memory/2068-88-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral1/memory/2892-93-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2892-91-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2892-97-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2892-100-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2068-103-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral1/memory/2892-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2892-99-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x0005000000004ed7-128.dat	upx
behavioral1/memory/2892-130-0x0000000003470000-0x00000000034C4000-memory.dmp	upx
behavioral1/memory/2892-149-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1996-207-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral1/memory/1520-237-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2892-254-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1996-251-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral1/memory/300-250-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/1996-249-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral1/memory/1520-255-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/300-258-0x0000000000400000-0x0000000000414000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6a1c65e57a0b014b6e353374c7a17964ce34f409c3888f894e1211712270ef06N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6a1c65e57a0b014b6e353374c7a17964ce34f409c3888f894e1211712270ef06N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe
Token: SeDebugPrivilege	1520	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2068	6a1c65e57a0b014b6e353374c7a17964ce34f409c3888f894e1211712270ef06N.exe
2892	6a1c65e57a0b014b6e353374c7a17964ce34f409c3888f894e1211712270ef06N.exe
1996	csrsll.exe
1520	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2068 wrote to memory of 2892	2068	6a1c65e57a0b014b6e353374c7a17964ce34f409c3888f894e1211712270ef06N.exe	31
PID 2068 wrote to memory of 2892	2068	6a1c65e57a0b014b6e353374c7a17964ce34f409c3888f894e1211712270ef06N.exe	31
PID 2068 wrote to memory of 2892	2068	6a1c65e57a0b014b6e353374c7a17964ce34f409c3888f894e1211712270ef06N.exe	31
PID 2068 wrote to memory of 2892	2068	6a1c65e57a0b014b6e353374c7a17964ce34f409c3888f894e1211712270ef06N.exe	31
PID 2068 wrote to memory of 2892	2068	6a1c65e57a0b014b6e353374c7a17964ce34f409c3888f894e1211712270ef06N.exe	31
PID 2068 wrote to memory of 2892	2068	6a1c65e57a0b014b6e353374c7a17964ce34f409c3888f894e1211712270ef06N.exe	31
PID 2068 wrote to memory of 2892	2068	6a1c65e57a0b014b6e353374c7a17964ce34f409c3888f894e1211712270ef06N.exe	31
PID 2068 wrote to memory of 2892	2068	6a1c65e57a0b014b6e353374c7a17964ce34f409c3888f894e1211712270ef06N.exe	31
PID 2892 wrote to memory of 1264	2892	6a1c65e57a0b014b6e353374c7a17964ce34f409c3888f894e1211712270ef06N.exe	32
PID 2892 wrote to memory of 1264	2892	6a1c65e57a0b014b6e353374c7a17964ce34f409c3888f894e1211712270ef06N.exe	32
PID 2892 wrote to memory of 1264	2892	6a1c65e57a0b014b6e353374c7a17964ce34f409c3888f894e1211712270ef06N.exe	32
PID 2892 wrote to memory of 1264	2892	6a1c65e57a0b014b6e353374c7a17964ce34f409c3888f894e1211712270ef06N.exe	32
PID 1264 wrote to memory of 2052	1264	cmd.exe	34
PID 1264 wrote to memory of 2052	1264	cmd.exe	34
PID 1264 wrote to memory of 2052	1264	cmd.exe	34
PID 1264 wrote to memory of 2052	1264	cmd.exe	34
PID 2892 wrote to memory of 1996	2892	6a1c65e57a0b014b6e353374c7a17964ce34f409c3888f894e1211712270ef06N.exe	35
PID 2892 wrote to memory of 1996	2892	6a1c65e57a0b014b6e353374c7a17964ce34f409c3888f894e1211712270ef06N.exe	35
PID 2892 wrote to memory of 1996	2892	6a1c65e57a0b014b6e353374c7a17964ce34f409c3888f894e1211712270ef06N.exe	35
PID 2892 wrote to memory of 1996	2892	6a1c65e57a0b014b6e353374c7a17964ce34f409c3888f894e1211712270ef06N.exe	35
PID 1996 wrote to memory of 1520	1996	csrsll.exe	36
PID 1996 wrote to memory of 1520	1996	csrsll.exe	36
PID 1996 wrote to memory of 1520	1996	csrsll.exe	36
PID 1996 wrote to memory of 1520	1996	csrsll.exe	36
PID 1996 wrote to memory of 1520	1996	csrsll.exe	36
PID 1996 wrote to memory of 1520	1996	csrsll.exe	36
PID 1996 wrote to memory of 1520	1996	csrsll.exe	36
PID 1996 wrote to memory of 1520	1996	csrsll.exe	36
PID 1996 wrote to memory of 300	1996	csrsll.exe	37
PID 1996 wrote to memory of 300	1996	csrsll.exe	37
PID 1996 wrote to memory of 300	1996	csrsll.exe	37
PID 1996 wrote to memory of 300	1996	csrsll.exe	37
PID 1996 wrote to memory of 300	1996	csrsll.exe	37
PID 1996 wrote to memory of 300	1996	csrsll.exe	37
PID 1996 wrote to memory of 300	1996	csrsll.exe	37
PID 1996 wrote to memory of 300	1996	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\6a1c65e57a0b014b6e353374c7a17964ce34f409c3888f894e1211712270ef06N.exe
"C:\Users\Admin\AppData\Local\Temp\6a1c65e57a0b014b6e353374c7a17964ce34f409c3888f894e1211712270ef06N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2068
- C:\Users\Admin\AppData\Local\Temp\6a1c65e57a0b014b6e353374c7a17964ce34f409c3888f894e1211712270ef06N.exe
  "C:\Users\Admin\AppData\Local\Temp\6a1c65e57a0b014b6e353374c7a17964ce34f409c3888f894e1211712270ef06N.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2892
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\KAVSR.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1264
  - - C:\Windows\SysWOW64\reg.exe
      REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Win Pdf" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe" /f
      4⤵
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      PID:2052
- - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1996
  - - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:1520
  - - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      PID:300

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\KAVSR.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe

Filesize
326KB

MD5
5e4a63df8298c73bae6456a6dd1d74f2

SHA1
790a04b288a3f2c719a404d5f6ecf6e4cc23bc38

SHA256
6d0a96a52a36668764a375cc830f8996258fd26d2e25eb8327004f9c1c825dde

SHA512
e6621b3cfaf9f467b40928ceb8767b378beb52a699fa5d0e82f4906922a450103fedd202df0e974e89a7dacd2b32f01802d22f34dfddbd4809fe5da36f5455c9

Download Submit
memory/300-258-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/300-250-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1520-255-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1520-237-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1996-181-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/1996-249-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/1996-162-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/1996-207-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/1996-173-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/1996-152-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/1996-251-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2068-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2068-15-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2068-60-0x0000000000350000-0x0000000000351000-memory.dmp

Filesize
4KB

Download
memory/2068-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2068-103-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2068-24-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2068-78-0x0000000000390000-0x0000000000392000-memory.dmp

Filesize
8KB

Download
memory/2068-70-0x0000000000370000-0x0000000000371000-memory.dmp

Filesize
4KB

Download
memory/2068-40-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/2068-0-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2068-88-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2068-28-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2892-97-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2892-149-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2892-148-0x0000000003470000-0x00000000034C4000-memory.dmp

Filesize
336KB

Download
memory/2892-144-0x0000000003470000-0x00000000034C4000-memory.dmp

Filesize
336KB

Download
memory/2892-145-0x0000000003470000-0x00000000034C4000-memory.dmp

Filesize
336KB

Download
memory/2892-130-0x0000000003470000-0x00000000034C4000-memory.dmp

Filesize
336KB

Download
memory/2892-99-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2892-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2892-236-0x0000000003470000-0x00000000034C4000-memory.dmp

Filesize
336KB

Download
memory/2892-254-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2892-100-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2892-95-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2892-89-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2892-248-0x0000000003470000-0x00000000034C4000-memory.dmp

Filesize
336KB

Download
memory/2892-91-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2892-93-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads